1. Week 26 pg. 54-55 What direction is friction ALWAYS in? Describe all the forces an object falling through the air would experience? What type of friction occurs between objects that are touching, but not moving? Which type of friction is stronger? Static or rolling? How are mass and weight different?

2. What does Newton’s 1 st law say about moving objects? (use your own words) Which has more inertia a basketball or a bowling ball? Why? What is inertia? Describe all the forces acting on a bowling ball rolling down the lane. Week 26 pg. 54-56

3. What would happen to the acceleration of an object if you increase the force? What if you decreased the force? How much force would it take to accelerate a 5g object to an acceleration of 20 m/s/s? How fast would a 3g golf ball accelerate if you hit it with 38N of force? Week 26 pg. 54-55

4. Jacob applies a force of 15N to the west side of the desk. Jessie applies a force of 5N to the east side of the desk. What is the net force on the desk? You are standing on the ground exerting a force of 56N down on the ground. What is the force the ground is exerting on you? If two forces that are the same size but opposite in direction are exerted on a car, what is the net force on the car? Describe the forces used stop a baseball that has been thrown at you. Week 26 pg. 54-55